{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["protein", "cell line", "DNA", "cell type", "RNA"], "input": "These involve activation of the sodium/proton exchanger of the cell membrane at very low, physiological concentrations of aldosterone with an acute onset within 1-2 min."}
{"protein": ["sodium/proton exchanger"], "cell line": [], "DNA": [], "cell type": [], "RNA": []}